JP5202830B2 - 流体軸受用潤滑油、並びにそれを用いた流体軸受及び流体軸受の潤滑方法 - Google Patents
流体軸受用潤滑油、並びにそれを用いた流体軸受及び流体軸受の潤滑方法 Download PDFInfo
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- JP5202830B2 JP5202830B2 JP2006248211A JP2006248211A JP5202830B2 JP 5202830 B2 JP5202830 B2 JP 5202830B2 JP 2006248211 A JP2006248211 A JP 2006248211A JP 2006248211 A JP2006248211 A JP 2006248211A JP 5202830 B2 JP5202830 B2 JP 5202830B2
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- 230000007246 mechanism Effects 0.000 description 1
- 239000006078 metal deactivator Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- IDVWLLCLTVBSCS-UHFFFAOYSA-N n,n'-ditert-butylmethanediimine Chemical compound CC(C)(C)N=C=NC(C)(C)C IDVWLLCLTVBSCS-UHFFFAOYSA-N 0.000 description 1
- OKQVTLCUHATGDD-UHFFFAOYSA-N n-(benzotriazol-1-ylmethyl)-2-ethyl-n-(2-ethylhexyl)hexan-1-amine Chemical compound C1=CC=C2N(CN(CC(CC)CCCC)CC(CC)CCCC)N=NC2=C1 OKQVTLCUHATGDD-UHFFFAOYSA-N 0.000 description 1
- JXTPJDDICSTXJX-UHFFFAOYSA-N n-Triacontane Natural products CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC JXTPJDDICSTXJX-UHFFFAOYSA-N 0.000 description 1
- XUMOVISJJBHALN-UHFFFAOYSA-N n-butyl-n-phenylnaphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(CCCC)C1=CC=CC=C1 XUMOVISJJBHALN-UHFFFAOYSA-N 0.000 description 1
- VCQJSMBSGMLFKI-UHFFFAOYSA-N n-heptyl-n-phenylnaphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(CCCCCCC)C1=CC=CC=C1 VCQJSMBSGMLFKI-UHFFFAOYSA-N 0.000 description 1
- LVZUNTGFCXNQAF-UHFFFAOYSA-N n-nonyl-n-phenylaniline Chemical compound C=1C=CC=CC=1N(CCCCCCCCC)C1=CC=CC=C1 LVZUNTGFCXNQAF-UHFFFAOYSA-N 0.000 description 1
- UMKFCWWZAONEEQ-UHFFFAOYSA-N n-nonyl-n-phenylnaphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(CCCCCCCCC)C1=CC=CC=C1 UMKFCWWZAONEEQ-UHFFFAOYSA-N 0.000 description 1
- RQVGZVZFVNMBGS-UHFFFAOYSA-N n-octyl-n-phenylaniline Chemical compound C=1C=CC=CC=1N(CCCCCCCC)C1=CC=CC=C1 RQVGZVZFVNMBGS-UHFFFAOYSA-N 0.000 description 1
- NCEGDHPVRKYIJN-UHFFFAOYSA-N n-pentyl-n-phenylnaphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(CCCCC)C1=CC=CC=C1 NCEGDHPVRKYIJN-UHFFFAOYSA-N 0.000 description 1
- 150000005002 naphthylamines Chemical class 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- CZKVZZHFMXVDHP-UHFFFAOYSA-N oxiran-2-ylmethyl 2-ethylhexanoate Chemical compound CCCCC(CC)C(=O)OCC1CO1 CZKVZZHFMXVDHP-UHFFFAOYSA-N 0.000 description 1
- IOAASXXXVORBNR-UHFFFAOYSA-N oxiran-2-ylmethyl 7-methyloctanoate Chemical compound CC(C)CCCCCC(=O)OCC1CO1 IOAASXXXVORBNR-UHFFFAOYSA-N 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- DOIRQSBPFJWKBE-UHFFFAOYSA-N phthalic acid di-n-butyl ester Natural products CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920013636 polyphenyl ether polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 229940032094 squalane Drugs 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000010689 synthetic lubricating oil Substances 0.000 description 1
- 238000002411 thermogravimetry Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 235000019871 vegetable fat Nutrition 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Images
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/32—Esters
- C10M105/38—Esters of polyhydroxy compounds
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- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
- C10M2207/042—Epoxides
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/14—Containing carbon-to-nitrogen double bounds, e.g. guanidines, hydrazones, semicarbazones
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/055—Particles related characteristics
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/08—Resistance to extreme temperature
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/02—Bearings
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/12—Gas-turbines
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/24—Metal working without essential removal of material, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding; Punching metal
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/30—Refrigerators lubricants or compressors lubricants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2370/00—Apparatus relating to physics, e.g. instruments
- F16C2370/12—Hard disk drives or the like
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- Lubricants (AREA)
- Sliding-Contact Bearings (AREA)
Description
以下に、本発明の潤滑油組成物を詳細に説明する。本発明の潤滑油組成物は、1,8-オクタンジオール、1,9-ノナンジオール又は1,10-デカンジオールと、2-エチルヘキサン酸とから得たジエステルを基油として用いることを特徴とする。本発明の潤滑油組成物の基油として用いる上記ジエステルは、脂肪酸由来の部分が分岐鎖状であるため、流動点が低く、また、低温で長期間保管しても、固化することがない。なお、炭素数6〜12の分岐鎖状の二価アルコールと炭素数6〜12の直鎖状の飽和一価脂肪酸とから得たジエステルは、アルコール由来の部分が分岐鎖状であるため、流動点が低いが、低温で長期間保管し場合、固化してしまうことがある。また、理由は必ずしも明らかではないが、本発明の潤滑油組成物は、炭素数6〜12で両末端にそれぞれカルボキシル基を有する直鎖状の二価カルボン酸と炭素数6〜12の分岐鎖状の飽和一価アルコールとから得たジエステルを基油とする潤滑油組成物よりも、高い酸化安定性を有し、特にアミン系酸化防止剤の添加による酸化安定性の向上効果が著しく高い。
R4−N=C=N−R5 ・・・ (IV)
[式中、R4及びR5は、それぞれ独立して炭素数1〜24の炭化水素基であり、好ましくは炭素数7〜24のアルキルフェニル基であり、より好ましくは炭素数7〜18のアルキルフェニル基である]で表わされことが好ましい。該カルボジイミド化合物として、具体的には、1,3-ジイソプロピルカルボジイミド、1,3-ジ-t-ブチルカルボジイミド、1,3-ジシクロヘキシルカルボジイミド、1,3-ジ-p-トリルカルボジイミド、1,3-ビス(2,6-ジイソプロピルフェニル)カルボジイミド等が挙げられ、これらの中でも、1,3-ジイソプロピルカルボジイミド、1,3-ジ-p-トリルカルボジイミド、及び1,3-ビス(2,6-ジイソプロピルフェニル)カルボジイミドが好ましい。これらカルボジイミド化合物は、一種単独で用いてもよいし、二種以上を組み合わせて用いてもよい。
次に、本発明の流体軸受用潤滑油、流体軸受及び流体軸受の潤滑方法を詳細に説明する。本発明の流体軸受用潤滑油は、上述した潤滑油組成物からなることを特徴とし、また、本発明の流体軸受は、軸とスリーブとを具え、該軸とスリーブとの隙間に上述した潤滑油組成物からなる流体軸受用潤滑油が保持されていることを特徴とし、更に、本発明の流体軸受の潤滑方法は、軸とスリーブとを具える流体軸受の該軸とスリーブとの隙間を上述した潤滑油組成物からなる流体軸受用潤滑油を用いて潤滑することを特徴とする。本発明の流体軸受は、ボールベアリング等の機構を有さず、スリーブと軸とを具え、それらの間に収容された潤滑油によって互いに直接接触することがないように間隔が保持される流体軸受であれば、機械的に特に限定されるものではない。また、本発明の流体軸受は、回転軸及び/又はスリーブに動圧発生溝が設けられ、回転軸が動圧によって支持される流体軸受や、回転軸に垂直方向に動圧を生じるようにスラストプレートが設けられている流体軸受等も含む。
(A)1,8-オクタンジオールと2-エチルヘキサン酸とのジエステル、
(B)1,9-ノナンジオールと2-エチルヘキサン酸とのジエステル、
(C)1,10-デカンジオールと2-エチルヘキサン酸とのジエステル、
(D)1,9-ノナンジオールとn-オクタン酸とのジエステル、
(E)2,4-ジエチル-1,5-ペンタンジオールとn-オクタン酸とのジエステル、
(F)セバシン酸と2-エチル-1-ヘキサノールとのジエステル、及び
(G)アゼライン酸と2-エチル-1-ヘキサノールとのジエステルに対して、動粘度、粘度指数、全酸価、水酸基価、蒸発量、流動点、低温流動性及び加水分解安定性を下記の方法で測定した。結果を表1に示す。
JIS K 2283に準じ、キャノン−フェンスケ粘度計を用いて動粘度を測定すると共に粘度指数を算出した。
JIS K 2501に準じて全酸価を測定した。
JIS K 0070に準じて水酸基価を測定した。
熱重量分析法(TG法)により、120℃で12時間保持したときの質量減少量から蒸発量を求めた。
JIS K 2269に準じて流動点を測定した。
50mLのサンプル瓶に供試油を20mL入れ、-40℃で30日間静置し、供試油の流動性(固化状況)を観察した。評価は、30日間静置後に取り出したサンプル瓶を逆さにし、1分以内に流動しないものを固化とした。
ASTM D2619に準拠して、93℃で20日間保管した後の供試油の全酸価を測定し、加水分解安定性を評価した。
次に、上記ジステルを基油とし、表2に示す添加剤を添加して潤滑油組成物を調製し、回転ボンベ式酸化安定度(RBOT):JIS K 2514により得られた潤滑油組成物の酸化安定性を評価した。結果を表2に示す。
*2 Vanderbilt社製Vanlube 81, 4,4'-ジオクチルジフェニルアミン
*3 チバスペシャリティケミカルズ製Irganox L06, オクチルフェニル-α-ナフチルアミン
*4 2-エチルヘキシルグリシジルエーテル
*5 1,3-ビス(2,6-ジイソプロピルフェニル)カルボジイミド
*6 チバスペシャリティケミカルズ製Irgamet 39, ベンゾトリアゾール誘導体
次に、上記ジステルを基油とし、表3に示す添加剤を添加して潤滑油組成物を調製し、得られた潤滑油組成物の加水分解安定性を評価した。結果を表3に示す。なお、表3中の*2、*4、*5は上記と同じである。
2 ブラケット
4 シャフト(軸)
4a 上部スラストプレート
4b 下部スラストプレート
6 ロータ
6a ロータハブ
6b スリーブ
6c 内周部貫通孔
7a 上部カウンタプレート
7b 下部カウンタプレート
8 潤滑油
10 ロータマグネット
12 ステータ
14 スパイラル溝
20 外気連通孔
22 気体介在部
24 ヘリンボーン状溝
D 記録ディスク
P 上部スラストプレートの下面内周部
Claims (7)
- 1,8-オクタンジオール、1,9-ノナンジオール又は1,10-デカンジオールと、2-エチルヘキサン酸とから得たジエステルを基油として用いた潤滑油組成物からなることを特徴とする流体軸受用潤滑油。
- 前記潤滑油組成物は、粘度指数が100以上であって、流動点が-50℃以下であることを特徴とする請求項1に記載の流体軸受用潤滑油。
- 前記潤滑油組成物は、アミン系酸化防止剤を0.01〜5質量%含有することを特徴とする請求項1に記載の流体軸受用潤滑油。
- 前記潤滑油組成物は、フェノール系酸化防止剤の含有量が0.1質量%以下であることを特徴とする請求項3に記載の流体軸受用潤滑油。
- 前記潤滑油組成物は、エポキシ化合物、カルボジイミド化合物、及びトリアゾール化合物からなる群から選択される少なくとも一種を0.01〜2質量%含有することを特徴とする請求項3に記載の流体軸受用潤滑油。
- 軸とスリーブとを具え、該軸とスリーブとの隙間に請求項1〜5のいずれかに記載の流体軸受用潤滑油が保持されていることを特徴とする流体軸受。
- 軸とスリーブとを具える流体軸受の潤滑方法において、
前記軸とスリーブとの隙間を請求項1〜5のいずれかに記載の流体軸受用潤滑油を用いて潤滑することを特徴とする流体軸受の潤滑方法。
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JP2006248211A JP5202830B2 (ja) | 2006-09-13 | 2006-09-13 | 流体軸受用潤滑油、並びにそれを用いた流体軸受及び流体軸受の潤滑方法 |
US12/310,368 US20090318316A1 (en) | 2006-09-13 | 2007-08-23 | Lubricating oil composition and lubricating oil for fluid dynamic bearing as well as fluid dynamic bearing and method for lubricating fluid dynamic bearing using the same |
PCT/JP2007/066390 WO2008032540A1 (fr) | 2006-09-13 | 2007-08-23 | Composition de lubrification, lubrifiant de palier dynamique fluide, palier dynamique fluide utilisant celui-ci et procédé de lubrification de palier dynamique fluide |
CN2007800331835A CN101511985B (zh) | 2006-09-13 | 2007-08-23 | 润滑油组合物和流体轴承用润滑油、以及流体轴承的润滑方法 |
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WO2010064347A1 (ja) * | 2008-12-01 | 2010-06-10 | 新日本石油株式会社 | 難燃性油圧作動油組成物 |
JP5505923B2 (ja) * | 2009-02-02 | 2014-05-28 | 協同油脂株式会社 | 潤滑油組成物及びグリース |
EP2740784A1 (en) | 2009-08-28 | 2014-06-11 | JX Nippon Oil & Energy Corporation | Refrigerant oil for freezers and operating fluid composition for freezers |
JP5390993B2 (ja) * | 2009-08-28 | 2014-01-15 | Jx日鉱日石エネルギー株式会社 | 冷凍機油および冷凍機用作動流体組成物 |
JP5399821B2 (ja) * | 2009-08-28 | 2014-01-29 | Jx日鉱日石エネルギー株式会社 | 冷凍機油および冷凍機用作動流体組成物 |
JP5399820B2 (ja) * | 2009-08-28 | 2014-01-29 | Jx日鉱日石エネルギー株式会社 | 冷凍機油および冷凍機用作動流体組成物 |
CN102695782A (zh) * | 2009-12-28 | 2012-09-26 | 出光兴产株式会社 | 机器冷却用基础油、混合该基础油而成的机器冷却油、通过该冷却油冷却的机器以及使用该冷却油的机器冷却方法 |
EP2554639A4 (en) | 2010-03-31 | 2013-11-20 | Nippon Steel & Sumikin Chem Co | OIL COMPOSITION |
WO2011125842A1 (ja) | 2010-03-31 | 2011-10-13 | 新日鐵化学株式会社 | 潤滑油組成物 |
JP2013043896A (ja) * | 2011-08-22 | 2013-03-04 | Kyodo Yushi Co Ltd | 流体動圧軸受用潤滑油基油、該基油を含有する流体動圧軸受用潤滑油及び該潤滑油を備えたスピンドルモータ |
JP5959382B2 (ja) * | 2011-09-30 | 2016-08-02 | 株式会社バルビス | 軸受用潤滑剤組成物 |
WO2013137160A1 (ja) * | 2012-03-12 | 2013-09-19 | 出光興産株式会社 | 潤滑油組成物 |
WO2014010682A1 (ja) * | 2012-07-11 | 2014-01-16 | 出光興産株式会社 | 潤滑油組成物 |
WO2014076747A1 (ja) * | 2012-11-13 | 2014-05-22 | 新日本理化株式会社 | 潤滑油 |
MX2015005882A (es) | 2012-11-16 | 2015-09-23 | Basf Se | Composiciones de lubricante que comprenden compuestos epoxido para mejorar la compatibilidad del sello de fluoropolimero. |
JP2019077841A (ja) * | 2017-10-27 | 2019-05-23 | 協同油脂株式会社 | グリース組成物 |
WO2020129944A1 (ja) * | 2018-12-20 | 2020-06-25 | 新日本理化株式会社 | 流体軸受用潤滑油基油 |
US11085006B2 (en) * | 2019-07-12 | 2021-08-10 | Afton Chemical Corporation | Lubricants for electric and hybrid vehicle applications |
US11634655B2 (en) | 2021-03-30 | 2023-04-25 | Afton Chemical Corporation | Engine oils with improved viscometric performance |
CN114540108B (zh) * | 2022-03-17 | 2022-11-18 | 江西苏克尔新材料有限公司 | 一种润滑油组合物及其制备方法和用途 |
US11912955B1 (en) | 2022-10-28 | 2024-02-27 | Afton Chemical Corporation | Lubricating compositions for reduced low temperature valve train wear |
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JP2004018531A (ja) * | 2002-06-12 | 2004-01-22 | Nippon Oil Corp | 潤滑油組成物 |
JP2005232434A (ja) * | 2004-01-21 | 2005-09-02 | New Japan Chem Co Ltd | 軸受用潤滑油 |
US20050282713A1 (en) * | 2004-03-31 | 2005-12-22 | Matsushita Electric Industrial Co., Ltd. | Hydrodynamic bearing device and spindle motor using the same |
JP2005290256A (ja) * | 2004-04-01 | 2005-10-20 | Matsushita Electric Ind Co Ltd | 流体軸受装置、及びそれを用いたスピンドルモータ |
JP5097402B2 (ja) * | 2004-08-24 | 2012-12-12 | 出光興産株式会社 | 熱交換器の熱交換効率を高くする方法 |
US7776802B2 (en) * | 2004-12-07 | 2010-08-17 | Panasonic Corporation | Hydrodynamic bearing device, and spindle motor and information device using the same |
JP2006193723A (ja) * | 2004-12-07 | 2006-07-27 | Matsushita Electric Ind Co Ltd | 流体軸受装置、ならびにそれを用いたスピンドルモータ及び情報装置 |
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